A few other people on HN is not “the rest of the world”, particularly when most of the complaints either don't reproduce at all or are significantly less problematic than claimed.
It's dead certain that PDF.js has plenty of room to improve but that requires solid benchmarking, not anecdata. I would hope Mozilla is collecting telemetry data about common bottlenecks from millions of users and triaging to see which problems are core or artifacts from local system configuration, graphics drivers, etc.
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A few other people on HN is not “the rest of the world”, particularly when most of the complaints either don't reproduce at all or are significantly less problematic than claimed.
It's dead certain that PDF.js has plenty of room to improve but that requires solid benchmarking, not anecdata. I would hope Mozilla is collecting telemetry data about common bottlenecks from millions of users and triaging to see which problems are core or artifacts from local system configuration, graphics drivers, etc.